Test failed with the exception java.lang.IllegalArgumentException: (start <= value <= end) with no history of failing till date. Investigation shows SpinnerDateModel constructor condition is not satisfied because It seems it's a leap year problem that is being manifested..
As per test, initDate Thu Feb 29 13:49:08 IST 2024 [ obtained by calendar.getTime();] earliestDate Tue Feb 28 13:49:08 IST 2023 [obtained by calendar.add(Calendar.YEAR, -1);] latestDate Wed Feb 28 13:49:08 IST 2024 [obtained by calendar.add(Calendar.YEAR, 1);] Now, as per SpinnerDateModel constructor earliestDate <= initDate condition is satisfied but latestDate >= initDate is not so [start <= value <= end](https://github.com/openjdk/jdk/blob/998d0baab0fd051c38d9fd6021628eb863b80554/src/java.desktop/share/classes/javax/swing/SpinnerDateModel.java#L185) condition fails Not sure it anything can be done in Calendar class for this but fix is done in test taking leapyear into account so that we add a day if it's a leapyear when we consecutively do Calendar.add(YEAR, -1) and Calendar.add(YEAR,1) on leapyear date of 29Feb ------------- Commit messages: - 8327007: javax/swing/JSpinner/8008657/bug8008657.java fails Changes: https://git.openjdk.org/jdk/pull/18054/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=18054&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8327007 Stats: 11 lines in 1 file changed: 11 ins; 0 del; 0 mod Patch: https://git.openjdk.org/jdk/pull/18054.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/18054/head:pull/18054 PR: https://git.openjdk.org/jdk/pull/18054